Suzuki outboard motors 1988 2003 repair manual., Page 203Get this manual
OIL INJECTION 6-11 See Figures 19, and 1
Water cooling is the most popular method in use to cool outboard powerheadsA "raw-water" type pump delivers seawater to the powerhead, circulating it through the cylinder head(s), the thermostat, the exhaust housing, and back down through the outboardThe water runs down the exhaust cavity and away, either through an exhaust tube or through the propeller hubRoutine maintenance of the cooling system is quite important, as expensive damage can occur if it overheatsThe cooling system is so important, that many outboards covered in this manual incorporate overheat alarm systems and
THERMOSTAT NDER
CYLINDER EXHAUSTCOVERED
CYLINDER
CYLINDER HEAD THERMOSTAT
WATER BLANKET
OVERFLOW DISCHARGE HOLEMAIN
WATER INLET
05006G27